routes.js

const { Router, CustomCacheKey } = require('@layer0/core/router')
const { nextRoutes } = require('@layer0/next')
// const { isProductionBuild } = require('../layer0/packages/core/src/environment')
const key = new CustomCacheKey().excludeAllQueryParametersExcept('query', 'version')
const prerenderRequests = require('./layer0/prerenderRequests')

const htmlCacheConfig = {
  key,
  browser: {
    maxAgeSeconds: 0,
    serviceWorkerSeconds: 0,
  },
  edge: {
    maxAgeSeconds: 60 * 60 * 24 * 365,
    staleWhileRevalidateSeconds: 60 * 60 * 24 * 365,
  },
}

const apiCacheConfig = {
  key,
  browser: {
    maxAgeSeconds: 0,
    serviceWorkerSeconds: 60 * 60,
  },
  edge: {
    maxAgeSeconds: 60 * 60 * 24 * 365,
    staleWhileRevalidateSeconds: 60 * 60 * 24 * 365,
  },
}

const staticCacheConfig = {
  key,
  browser: {
    maxAgeSeconds: 0,
    serviceWorkerSeconds: 60 * 60,
  },
  edge: {
    maxAgeSeconds: 60 * 60 * 24 * 365,
    staleWhileRevalidateSeconds: 60 * 60 * 24 * 365,
  },
}

const redirects = [
  ['/guides/starter', '/guides/traditional_sites'],
  ['/guides/debugging', '/guides/troubleshooting'],
  ['/guides/deploying', '/guides/deploy_apps'],
  ['/guides/getting_started', '/guides/build_web_apps'],
]

const router = (module.exports = new Router()
  // .requireBasicAuth({
  //   username: process.env.BASIC_AUTH_USERNAME,
  //   password: process.env.BASIC_AUTH_PASSWORD,
  // })
  .prerender(prerenderRequests)
  .match({}, ({ setResponseHeader }) => {
    if (process.env.NODE_ENV === 'production') {
      setResponseHeader('Strict-Transport-Security', 'max-age=31536000; includeSubDomains; preload')
      setResponseHeader(
        'Content-Security-Policy',
        [
          `default-src 'self'`,
          `style-src 'unsafe-inline' 'self' fonts.googleapis.com cdn.jsdelivr.net`,
          `font-src fonts.gstatic.com`,
          `img-src 'self' www.google-analytics.com analytics.twitter.com www.facebook.com px.ads.linkedin.com *.intercomcdn.com tr.lfeeder.com data:`,
          `frame-src www.youtube.com youtu.be player.vimeo.com`,
          `script-src 'unsafe-inline' 'self' 'unsafe-eval' cdn.jsdelivr.net www.googletagmanager.com cdn.segment.com cdn4.mxpnl.com www.google-analytics.com widget.intercom.io sc.lfeeder.com snap.licdn.com connect.facebook.net www.youtube.com js.intercomcdn.com static.hotjar.com s.adroll.com px4.ads.linkedin.com`,
          `base-uri 'self'`,
          `frame-ancestors 'self'`,
          `media-src www.youtube.com`,
          `connect-src *.layer0.co *.layer0.link *.layer0-perma.link *.segment.io *.segment.com analytics.google.com *.intercom.io *.intercomcdn.com *.intercomassets.com *.github.io *.algolianet.com *.algolia.net`,
        ].join('; '),
      )
      setResponseHeader('X-XSS-Protection', '1; mode=block')
    }
  })
  .match('/service-worker.js', ({ cache, serveStatic }) => {
    cache({
      browser: {
        maxAgeSeconds: 0,
      },
      edge: {
        maxAgeSeconds: 60 * 60 * 365,
      },
    })
    serveStatic('.next/static/service-worker.js')
  })
  .get('/images/:path*', ({ cache }) => {
    cache(staticCacheConfig)
  })
  // the following route is needed for older guides and should not be removed
  .match('/guides/images/:path*', ({ cache, serveStatic }) => {
    cache(staticCacheConfig)
    serveStatic('public/images/:path*')
  })
  .match('/:path*', ({ cache }) => {
    cache(htmlCacheConfig)
  })
  // match api docs with a file extension
  .match('/docs/api/:path*:file(\\.[css|js|html|json|png]+)', ({ proxy, cache, request }) => {
    cache(htmlCacheConfig)
    proxy('api', { path: '/current/api/:path*:file' })
  })
  // match api docs with a terminating /
  .match('/docs/api/:path*/', ({ proxy, cache, request }) => {
    cache(htmlCacheConfig)
    proxy('api', { path: '/current/api/:path*/index.html' })
  })
  // match api docs without terminating /,
  // gets redirected to :path*/ to satisfy relative asset paths
  .match('/docs/api/:path*', ({ redirect }) => {
    redirect('/docs/api/:path*/')
  })
  // match versioned api docs with a file extension
  .match(
    '/docs/:version/api/:path*:file(\\.[css|js|html|json|png]+)',
    ({ proxy, cache, request }) => {
      cache(htmlCacheConfig)
      proxy('api', { path: '/:version/api/:path*:file' })
    },
  )
  // match versioned api docs with a terminating /
  .match('/docs/:version/api/:path*/', ({ proxy, cache, request }) => {
    cache(htmlCacheConfig)
    proxy('api', { path: '/:version/api/:path*/index.html' })
  })
  // match versioned api docs without terminating /,
  // gets redirected to :path*/ to satisfy relative asset paths
  .match('/docs/:version/api/:path*', ({ redirect }) => {
    redirect('/docs/:version/api/:path*/')
  })
  .get('/googleb2732cddf1383cf4.html', ({ send }) =>
    send('google-site-verification: googleb2732cddf1383cf4.html', 200, 'OK'),
  ))

redirects.forEach(([from, to, statusCode]) => {
  router.match(from, ({ redirect }) => redirect(to, statusCode || 302))
})

router.use(nextRoutes).fallback(({ redirect }) => {
  return redirect('/', 302)
})